SuzukiSavage.com - My Savage needs help.

Coaxial

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Toronto, Ontario, Canada
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My Savage needs help.
01/26/15 at 08:06:12

Hey Guys,

My savage is currently hibernating and while it does so, I want to fix some things that have been happening:

My bikes acceleration is not as good as it used to. I do not experience any clutch slipping, I notice my bike is burning oil. My cousin mentioned that the exhaust is spitting out oil but not significantly.(He said it felt the exhaust was oily on his hands.)

There is an oil leak on the left side of the bike, I assume it maybe near the electricals from what I read here on the forums.

I measured the clearances and it seemed in the appropriate range but I cannot be certain as I am a novice in these matters.

The carburetor shows black soot near the throttle valve. As if there was ignition nearby.

Some facts:

2007 - 45,000 km bike
Verslavy installed
K&N Air Filter Cleaned bi-annually.
Jardine Rumblers
Possible Exhaust leak
Carburetor at 2 turns, 45 and 145. One washer
Carburetor gets a good cleaning yearly
Living in Toronto Canada. Around 100 feet with high humidity.
Spark plug shows as a matte sooty black
Rotella T6
Raptor Petcock

*Edit: Added Raptor Petcock

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« Last Edit: 01/26/15 at 10:18:47 by Coaxial »

2007 Suzuki Boulevard S40 Black. K&N Air Filter, Jardine Rumbler Exhaust, Raptor Petcock.

145 Main Jet, 45 Pilot Jet, 1.5x

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Dave YaBB Moderator ModSquad Offline SuzukiSavage.com Rocks! Posts: 17820 Camp Springs, Kentucky Gender:	Re: My Savage needs help. Reply #1 - 01/26/15 at 08:16:59 Take a compression test on the cylinder....it will give a good indication of the piston/ring/cylinder and valve health.
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verslagen1 YaBB Moderator ModSquad Offline Where there's a will, I want to be in it. Posts: 28764 L.A. California Gender:	Re: My Savage needs help. Reply #2 - 01/26/15 at 08:48:04 Coaxial wrote on 01/26/15 at 08:06:12: The carburetor shows black soot near the throttle valve. As if there was ignition nearby. I got black soot on my fork brace, so I don't think that indicates anything. Quote: •Spark plug shows as a matte sooty black ignore the metal threaded area, only look at the ceramic core.
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Coaxial Full Member Offline SuzukiSavage.com Rocks! Posts: 184 Toronto, Ontario, Canada Gender:	Re: My Savage needs help. Reply #3 - 01/26/15 at 09:47:28 I am trying to get a compression gauge now.. preferably borrow one. As for the soot.. it was inside the carburetor. The spark plug core was black.. I will take photo when I can.
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verslagen1 YaBB Moderator ModSquad Offline Where there's a will, I want to be in it. Posts: 28764 L.A. California Gender:	Re: My Savage needs help. Reply #4 - 01/26/15 at 10:06:17 Sparky shouldn't be black with those jets. be sure to check your petcock. if you're running that rick, could have washed down the cylinder and caused your rings to fail. fix the over rich condition, run it for awhile and the rings may get better... if there's any spring left in them.
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Dave

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Re: My Savage needs help.
Reply #5 - 01/26/15 at 10:09:15

A black sooty spark plug can be from several different causes. Low compression can cause it, an overly rich mixture can cause it, burning oil can cause it.

If the mixture is too rich your float level could be too high, you did not say you have switched the petcock to the Raptor - so a leaky diaphragm in the stock petcock could cause it, a dirty air filter or one that is clogged with oil could cause it. Running too rich - too long can dilute the oil and/or wash the oil of the cylinder walls and cause the rings to wear faster than normal. If the black is "oil", it generally is not sooty on the plug but will look oily instead. Leaky valves seals can lead to oil usage, blue smoke from the exhaust - but it generally doesn't affect performance noticeably.

Low compression could be worn rings, scored cylinder, leaky valves, too tight of valves or the compression release hanging up.

Is there smoke from the exhaust after the bike is warmed up? Black smoke is generally too much fuel....blue smoke is oil....white smoke is water vapor.

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Coaxial

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Toronto, Ontario, Canada
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Re: My Savage needs help.
Reply #6 - 01/26/15 at 10:21:26

No smoke from the exhaust before or after warmup. No visible exhaust.
I do have the Raptor Petcock, i forgot to add that in there. It was running rich for one season but the next season I found a happy medium where its leaner yet minimal backfire.

Also I should note that this motorcycle is used in Urban riding daily during the warm seasons.. about 40km a day or so. Stop and go during rushhours.

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2007 Suzuki Boulevard S40 Black. K&N Air Filter, Jardine Rumbler Exhaust, Raptor Petcock.

145 Main Jet, 45 Pilot Jet, 1.5x

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Serowbot YaBB Moderator ModSquad Offline OK.... so what's the speed of dark? Posts: 28375 Tucson Az Gender:	Re: My Savage needs help. Reply #7 - 01/26/15 at 11:36:31 ...the black from the exhaust is probably water condensation carrying carbon soot from the exhaust... ... 45/145 seems really lean for your set-up... I'd expect at least a 50/150...
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Coaxial Full Member Offline SuzukiSavage.com Rocks! Posts: 184 Toronto, Ontario, Canada Gender:	Re: My Savage needs help. Reply #8 - 01/26/15 at 13:11:03 I'll give 50/150 a try again. I remember trying this and finding the plug sooty as well. It may very well be that I really need to do that compression test to see how everything is. If I go 50/150 how many washers should i have?
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Flint

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Re: My Savage needs help.
Reply #9 - 01/26/15 at 15:50:50

If you have access to a torch or welder, knock the guts out of a spark plug and weld/braze a air chuck adaptor on. Install the mofified plug. Remove the oil fill cap. Set the engine on TDC compression stroke with the motor in top gear and get someone to sit on the bike and hold the rear brake.

Run 40 or 50 PSI air through the plug with an air compressor. If you hear air coming through the airfilter on the bike your intake valve is bad. Air through the exhaust means the exhaust valves are bad. Air through the oil fill means the rings are bad.

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justin_o_guy2 Serious Thumper Offline What happened? Posts: 55279 East Texas, 1/2 dallas/la.	Re: My Savage needs help. Reply #10 - 01/26/15 at 15:59:09 Tell me you blew the crud out of the cavity the plug sits in..
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Coaxial

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Re: My Savage needs help.
Reply #11 - 01/26/15 at 16:17:32

I try and keep my bike as clean as possible no crud was ever around the area.

As for the air pressure test, very interesting. I do not have access to a welder or a torch.

Would this do the trick? http://i00.i.aliimg.com/wsphoto/v0/1365227450/PHTM-12-04-tube-size-12mm-font-...

Question, would I be disengaging the clutch during this test?

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2007 Suzuki Boulevard S40 Black. K&N Air Filter, Jardine Rumbler Exhaust, Raptor Petcock.

145 Main Jet, 45 Pilot Jet, 1.5x

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Flint

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Re: My Savage needs help.
Reply #12 - 01/26/15 at 16:31:51

It might work, you would have to see. I have done lots of leakdown tests on aircraft engines and basicaly you are doing what I described.

You leave the clutch engaged as the air pressure will turn the engine over. Some engines are designed to use compressed air to start!

The old DC-3 had a kit you could install to use a giant blank shot gun shell to fire up one engine and get the batteries charging. You swung the prop to get just past TDC.

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Coaxial Full Member Offline SuzukiSavage.com Rocks! Posts: 184 Toronto, Ontario, Canada Gender:	Re: My Savage needs help. Reply #13 - 01/26/15 at 19:07:15 I will assume then that leaving the bike on stands would be beneficial ? I believe this hose fitting will serve its purpose as it is a compression tester as well. http://www.amazon.ca/INNOVA-3612-Compression-Tester-Piece/dp/B000EVU89I/ref=s...
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